Yeah, my STBXABF is very similar to your husband. I don't believe I will ever receive closure from him. I think the only way I will have closure from this relationship it to accept apologies that never came, say what I need to say to MYSELF, feel the pain, and then let it go.
Closure is up to us - they aren't cable of providing much for anyone (including themselves) and I think expecting closure from my A is just setting myself up for another disappointment.
Even if I had a chance to let it all out to him / at him, the response would be the same as it always has been - drink until indifferent. I have had enough of that.
(((HUGS)))